Seiko Cal. 6637 - 841

Seiko 6637-841

This Hand-Winding model from 1967 features a 39mm Titanium case. The Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-c371bea0e382]

Also known as: Sportsmatic

Specifications

Movement
Hand-Winding
Case Material
Titanium
Case Width
39mm
Case Thickness
8.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
170m
Dial Color
Navy
Jewels
27j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1967

Related Models

seikata-wm-c371bea0e382