Seiko Cal. 6637 - 499

Seiko 6637-499

This Hand-Winding model from 1973 features a 46mm Two-Tone case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-67372f7399f2]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
46mm
Case Thickness
10.1mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
90m
Dial Color
White
Jewels
33j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1973

Related Models

seikata-wm-67372f7399f2