Seiko Cal. 6637 - 765

Seiko 6637-765

This Automatic model from 1994 features a 41mm Two-Tone case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-20e3b98397e3]

Also known as: Bullhead, Bellmatic

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
41mm
Case Thickness
14.6mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Champagne
Jewels
28j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1994

Related Models

seikata-wm-20e3b98397e3