Seiko Cal. 0740 - 643

Seiko 0740-643

This Hand-Winding model from 1966 features a 42mm Stainless Steel case. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-09f5ac29f753]

Also known as: Monster, Bullhead

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
14.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Navy
Jewels
34j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1966

Related Models

seikata-wm-09f5ac29f753