The Titanium Field Guide

Citizen Slim Super Titanium (AW1900 series)

The Citizen Slim Super Titanium (AW1900 series) is a current-production dress watch with a Super Titanium (proprietary) case, finished with duratect. It measures 40.0 mm across, and is water resistant to 50 m. Inside is the Caliber J810 (240-day reserve) eco-drive (solar quartz) movement, with 240 days power reserve. Complications: Date. Brand origin: Japan.

Titanium dress watches
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Reference–
TypeDress
Price– · MSRP pending
Case diameter40.0 mm
Thickness–
Lug-to-lug–
Water resistance50 m
Weight–
OriginJapan
MovementEco-Drive (solar quartz)
CaliberCaliber J810 (240-day reserve)
Power reserve240 days
ComplicationsDate
TitaniumSuper Titanium (proprietary)
Surface treatmentDuratect
Nickel-freeYes
Bracelet / strapSuper Titanium
CrystalSapphire
Display backNo
DialMultiple
LumeYes
AvailabilityOffered
StatusCurrent (2026 release)
High confidence Verified 2026-06-21 Source: Citizen Europe (maker online shop) / Citizen Super Titanium collection (maker) Maker / listing ↗
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