Seiko Cal. 6331 - 940

Seiko 6331-940

The 6331-940 is a sought-after Solar piece from Seiko's golden era. Powered by the 6331 caliber with 22j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-6b076b62ce26]

Also known as: Helmet, Silverwave

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
14.5mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
70m
Dial Color
Burgundy
Jewels
22j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1992

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seikata-wm-6b076b62ce26