Seiko Cal. 6631 - 740

Seiko 6631-740

This Kinetic model from 1972 features a 42mm Hardlex-Coated Steel case. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-3277fc06a69e]

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
12.5mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Champagne
Jewels
26j
Frequency
36,000 bph
Power Reserve
54 hours
Year
1972

Related Models

seikata-wm-3277fc06a69e