Seiko Cal. 6131 - 631

Seiko 6131-631

This Solar model from 1966 features a 37mm Gold-Plated case. Powered by the 6131 caliber with 19j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-d08f50b0a5e8]

Specifications

Movement
Solar
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
8.7mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Silver
Jewels
19j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1966

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