Seiko Cal. 5631 - 238

Seiko 5631-238

This Solar model from 1982 features a 40mm Hardlex-Coated Steel case. Powered by the 5631 caliber with 33j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-1f4f81e37393]

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
15.2mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Silver
Jewels
33j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1982

Related Models

seikata-wm-1f4f81e37393