Try It On

Case Width 39mm

Case Width 39mm

Try It On

Case Width 39mm

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

How to measure your wrist size

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

Delivery & Returns

Free Standard Shipping on most orders. Fan Shop orders do not qualify for free shipping. Buy two straps get free Standard Shipping. Get your refund faster with easy online returns! Mail your items back with our return label within 30 days.

Timex Expedition® Capstone watch with black dial and black silicone strap resting among rugged dark rocks. The watch face glows softly with luminous markers, highlighting its durability, 50-meter water resistance, and adventure-ready design.
Timex Expedition® Capstone watch with black dial and black silicone strap resting among rugged dark rocks. The watch face glows softly with luminous markers, highlighting its durability, 50-meter water resistance, and adventure-ready design.

Expedition® Capstone

39mm Silicone Strap Watch
New

Quick-Release Silicone Strap

Date Window

Luminescent Hand and Dial Markings

Regular price $129.00
Sale price $129.00 Regular price $129.00

Expedition® Capstone

39mm Silicone Strap Watch
New

Quick-Release Silicone Strap

Date Window

Luminescent Hand and Dial Markings

Regular price $129.00
Sale price $129.00 Regular price $129.00
TW2Y18100 Expedition® Capstone 39mm Silicone Strap Watch Primary Image
Expedition® Capstone
39mm Silicone Strap Watch

Gear Up. Get Out. Go Anywhere.

Our Expedition Capstone brings a new 39mm brushed case to our Expedition collection. The dial is protected by a flat mineral glass crystal and includes luminant hands and a date window beside 3 o'clock. We’ve paired it with a two-piece green or black silicone strap that’s soft and flexible on the wrist and equipped with quick-release spring bars for easy strap changes on the go.

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Specifications

Product ID

TW2Y18100

Quartz Analog Movement

A quartz analog movement is powered by a battery. Quartz movements are highly accurate, capable of keeping time to within milliseconds per day.

Quartz Analog

Engineered for Accuracy

A quartz analog movement runs on a battery and keeps time with the steady vibration of a tiny crystal. It’s highly accurate, low-maintenance, and powers the hands with precise ticks.

Case & Dial

  • Case Diameter 39 mm
  • Case Height 10 mm
  • Case Material Low Lead Brass
  • Case Color IP Black
  • Case Finish Brushed
  • Dial Color Black
  • Dial Markings Arabic & Markers (Partial)
  • Battery Type SR920SW

Quick-Release Silicone Strap

There are no tools required to remove the spring bars that attach the silicone strap to the case. Refresh your look in seconds with endless strap options.

  • Band / Lug Width 20 mm
  • Band Material Silicone
  • Band Color Black
  • Band Buckle Buckle

Mineral Crystal

A toughened glass made from silica that's heat- and scratch-resistant, offering clear visibility and solid everyday durability.

Mineral Glass

Enhanced durability

Mineral crystals use a similar material to windowpane glass and were developed for watches as a harder alternative to acrylic. Mineral crystals are still susceptible to scratches but less so than acrylic, however it is not possible to buff out these scratches as it is with acrylic. Mineral glass is not as shatter resistant as acrylic but does offer greater transparency and clarity. Due to their improved scratch resistance versus acrylic, and improved shatter resistance versus sapphire, mineral is often considered to be the best of both worlds as a crystal material.

Acrylic Crystal

Highly impact-resistant

Clear plastic dome lid on a white background

Mineral Crystal

Enhanced durability

Sapphire Crystal

Scratch-Resistant

Round metallic object on a black background

Water Resistant to 50 Meters

This watch is suitable for light swimming. It is not suitable for snorkelling, or poolside diving. To maintain water resistance, do not press any buttons while underwater.

50m

Water Resistance

This watch is suitable for light swimming. It is not suitable for snorkelling, or poolside diving. To maintain water resistance, do not press any buttons while underwater.

30m

Light rain, sweat & splashes.

Icon of a cloud with raindrops on a blue background

50m

Short swims.

100m

Swimming, snorkeling & surfing.

200m

Recreational scuba-diving.

Diver icon on a blue background

Date Window

This watch dial incorporates a date window, offering convenient access to the current date.

Luminescent Hand and Dial Markings

Luminescent in-fill on the hands and markers provide enhanced visibility in low-light conditions.

Features

  • Timex Expedition® Capstone watch with black dial and black silicone strap resting among rugged dark rocks. The watch face glows softly with luminous markers, highlighting its durability, 50-meter water resistance, and adventure-ready design.

    Better Readability Outdoors

Try It On

Case Width 39mm

Case Width 39mm

Try It On

Case Width 39mm

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

Wrist Size (in)

Your Wrist Size Circumference (in)

Band Size

The band for this watch can be adjusted to fit comfortably between the following wrist circumferences.

150 - 205mm (5.9 - 8.1in)

How to measure your wrist size

Wrap a garment measuring tape snuggly around your wrist just below the wrist bone. Alternatively use a piece of string and then measure the string length with a ruler. The average wrist size for men is 6.5-7.5", and for women is 5.5-6.5".

How to choose the right case size

Case diameter determines the watch size: it’s the width of the watch case, excluding the crown. Small wrists (<6") suit 28–36mm, average (6–7") fit 36–42mm, and larger wrists (7"+) can wear 42mm+. Smaller cases can feel refined or vintage-inspired, while larger ones make a bold, modern statement.


Read Our Watch Size Guide

A Pioneering Outdoor Collection

Expedition is guided by our commitment to bringing you durable watches crafted from premium materials that can keep up with your adventures while taking less from the earth and leaving less behind.

Built for the Outdoors

A person holding a coiled orange climbing rope, wearing a Timex Expedition watch with a green dial and black strap. The person’s face is slightly out of focus, emphasizing the rugged gear and timepiece.
Sunlight filters through tall trees in a dense forest, illuminating the lush undergrowth and creating a serene, golden glow in the woodland scene.
A powerful waterfall cascades between green, moss-covered cliffs under a cloudy sky, creating a dramatic and natural landscape.
Close-up studio image of a Timex Expedition watch with a black textured dial, luminous hands and markers, date window, and titanium 200M water resistance rating, set against a dark background.
A man in a cap and two-tone jacket paddles a green canoe on a calm, tree-lined lake, wearing a Timex Expedition watch on his left wrist.
A waterfall tumbles over a rugged cliff surrounded by evergreen trees, with warm light catching the autumn leaves in the foreground.

Engineered for exploration, with highly durable construction and premium materials that keep pace with your adventures.

  • Our Promise for the Next 170 Years

    Since 1854, no other watchmaker has ever been able to match our ability to put a well-crafted watch on your wrist, while leaving money in your pocket. Every Timex is a testament to our legendary durability and value, and a reminder to make time yours.

    Read more about us
    Artistic depiction of a hand holding a clock with classical figures and architectural elements on a dark background
  • Crafted to Keep Our Planet Ticking

    We are proud pioneers in making timeless watches that are environmentally-friendly, beautifully crafted and can take a licking and keep on ticking.

    Read more about our goals
    Close-up of a leaf with water droplets on its surface
Artistic depiction of a hand holding a clock with classical figures and architectural elements on a dark background
Close-up of a green leaf with water droplets