Seiko Cal. 6231 - 931

Seiko 6231-931

This Solar model from 1978 features a 40mm Titanium case. Powered by the 6231 caliber with 19j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-746aaea5726a]

Specifications

Movement
Solar
Case Material
Titanium
Case Width
40mm
Case Thickness
15.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
140m
Dial Color
White
Jewels
19j
Frequency
21,600 bph
Power Reserve
50 hours
Year
1978

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