The Titanium Field Guide

Citizen "The Citizen" Eco-Drive 50th Anniversary

AQ4091-56W

The Citizen "The Citizen" Eco-Drive 50th Anniversary is a current-production dress watch with a Super Titanium (proprietary) case, finished with duratect platinum. It measures 40.0 mm across, 12.2 mm thick, and is water resistant to 100 m. Inside is the Caliber A060 (±5 s/yr) eco-drive (solar quartz) movement, with Solar (continuous) power reserve. Complications: Date. Priced from $3,100 (MSRP). Brand origin: Japan.

Titanium dress watches
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ReferenceAQ4091-56W
TypeDress
Price$3,100 · MSRP
Case diameter40.0 mm
Thickness12.2 mm
Lug-to-lug–
Water resistance100 m
Weight–
OriginJapan
MovementEco-Drive (solar quartz)
CaliberCaliber A060 (±5 s/yr)
Power reserveSolar (continuous)
ComplicationsDate
TitaniumSuper Titanium (proprietary)
Surface treatmentDuratect Platinum
Nickel-freeYes
Bracelet / strapSuper Titanium
CrystalDual-sphere sapphire, AR coated
Display backNo
DialHand-dyed green washi
LumeNatulite
AvailabilityOffered
StatusCurrent (limited, 650 pcs)
High confidence Verified 2026-06-18 Source: Monochrome Maker / listing ↗
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