Seiko Cal. 5631 - 281

Seiko 5631-281

This Solar model from 1976 features a 41mm PVD Black case. The Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-5528f3e2b230]

Also known as: Monster, Panda

Specifications

Movement
Solar
Case Material
PVD Black
Case Width
41mm
Case Thickness
8.9mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
110m
Dial Color
Green
Jewels
33j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1976

Related Models

seikata-wm-5528f3e2b230