Casio G-Shock GMA-S140M-1ADR

Product Overview

From G-SHOCK, the watch brand ever-evolving in an endless pursuit of strength, comes a downsized version of the popular GA-140. This model retains the iconic, retro-mechanical face design while offering a compact size that fits comfortably on the wrist.

Featuring edgy metal parts on the indices and dial, this timepiece boasts a high-quality texture and a sophisticated finish. Its cool matte color and sporty design make it a fashionable accessory that looks great with winter street styles or casual daily wear. Because of its versatile sizing, it is also a perfect choice for those who enjoy wearing G-SHOCKs as a coordinated pair.

Major Features

• Refined "S-Series" Sizing: A compact, mid-size case that delivers legendary G-SHOCK toughness in a more versatile and comfortable form factor.
• Retro Mechanical Face: The dial is inspired by 90s stereo components and industrial machinery for a unique, technical aesthetic.
• Magnetic Resistance: ISO 764-compliant construction ensures the watch remains accurate even when exposed to magnetic fields from electronics.
• 1/1000-Second Stopwatch: High-precision timing that includes a Mach Indicator for measuring speeds exceeding 1225 units/hour.
• Auto LED Light: Equipped with an auto-light switch that illuminates the face with a simple flick of the wrist.
• 20-Bar Water Resistance: Fully reliable for swimming, snorkeling, and high-pressure water environments.

Technical Specifications

Basic Information

• Case Size (L× W× H): 49 × 45.9 × 15.8 mm
• Weight: 56 g (Designed for lightweight, all-day comfort)
• Material: Durable Resin case, bezel, and band
• Construction: Shock Resistant; Magnetic Resistant
• Glass: Scratch-resistant Mineral Glass
• Battery Life: Approximately 2 years on CR1220

Watch Features

• World Time: 29 time zones (48 cities + UTC) with home city/world time swapping.
• Advanced Stopwatch: 1/1000-second precision with a capacity of 99:59'59.999''.
  • Speed Calculations: Input distance (0.0 to 99.9) to track speed up to 1998 units/hour.
• Countdown Timer: 24-hour range with auto-repeat and 1-minute/1-hour increments.
• Alarms: 5 daily alarms (including 1 snooze alarm) and hourly time signal.
• Calendar: Full auto-calendar (pre-programmed to the year 2099).
• Accuracy: ±15 seconds per month.
• Regular Timekeeping: Analog (2 hands) and Digital (Hour, minute, second, pm, month, date, day).

Style and Versatility

Pair-Ready Design

The GMA-S140M is engineered to look great on any wrist. Its mid-size dimensions make it an ideal "unisex" choice, allowing it to be worn as a stand-alone statement piece or as a matching pair with the larger GA-140 models.

Edgy Metallic Texture

The use of edgy metal parts for the dial and indices gives the watch a premium feel. This metallic intensity contrasts beautifully with the cool matte resin of the bezel, ensuring the watch catches the light and stands out against your winter wardrobe.

High-Performance Timing

Beyond its looks, this watch is a precision instrument. The 1/1000-second stopwatch and speed indicator dial provide the tools needed for competitive timing, while the auto-light ensures you can access all that data even in low-light conditions.