Seiko Cal. 6631 - 742

Seiko 6631-742

This Hand-Winding model from 1971 features a 44mm Gold-Plated case. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-499c2dfd794f]

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
44mm
Case Thickness
14.7mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
140m
Dial Color
Black
Jewels
17j
Frequency
36,000 bph
Power Reserve
59 hours
Year
1971

Related Models

seikata-wm-499c2dfd794f