Seiko Cal. 6639 - 686

Seiko 6639-686

This Spring Drive model from 1992 features a 38mm Gold-Plated case. With its 18mm lug width and 14.2mm profile, it sits comfortably on most wrists. [seikata-wm-8e0144ec4538]

Also known as: Monster

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
38mm
Case Thickness
14.2mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Black
Jewels
36j
Frequency
21,600 bph
Power Reserve
37 hours
Year
1992

Related Models

seikata-wm-8e0144ec4538