TissotPRX 40 Quartz
T137.410.11.041.00Same family, reference not statedPhoto: Soulreaper, CC BY-SA 4.0US$450
Integrated sports, 2019
G-Shock GA-2100 "CasiOak"
Ref. GA-2100-1A1
- 45.4mm
- Diameter
- 11.8mm
- Thickness
- 200m
- Water resistance
Its octagonal bezel earned it the nickname CasiOak for its resemblance to the Audemars Piguet Royal Oak, and its slim case rests on a carbon structure.
US$110
List price reported by the pressNov 2026. Source: g-central.com
Conversion, not a local price. VAT differs: 20% in the UK, 5% in the UAE. Original price: US$110.
- Diameter
- 45.4 mm
- Thickness
- 11.8 mm
- Water resistance
- 200 m
- Movement
- Quartz
- Material
- Carbon and resin
Who it suits
For buyers who want a slim, light G-Shock for $110: 11.8 mm thick, 51 g and 200 m water resistance.
Specifications
Case
- Diameter
- 45.4 mm
- Thickness
- 11.8 mm
- Material
- Carbon and resin
- Shape
- octagonal
- Water resistance
- 200 m
Movement
- Movement
- Quartz
- Calibre
- Módulo 5611
- Power reserve
- Not confirmed
- Frequency
- Not confirmed
- Jewels
- Not confirmed
- Complications
- hours, minutes, seconds, date, stopwatch, alarm, world time, light
Dial and strap
- Dial
- black
- Markers
- batons
- Date
- Yes
- Bezel
- octagonal, black
- Strap
- resin, black
Record
- Line
- G-Shock 2100 (CasiOak)
- Year
- 2019
- Status
- In production
- Range
- Affordable
Across the Archive
Alternatives
Why it matters
- 11.8 mm thick thanks to Carbon Core Guard
- Launched in Japan in August 2019
- The bezel derives from the DW-5000 with a round dial, not a homage, per G-Central
- 51 g
Sources
Record confidence: high. Anything unverified stays marked, never estimated.