Seiko Cal. 6631 - 886

Seiko 6631-886

This Automatic model from 1968 features a 40mm Hardlex-Coated Steel case. With its 19mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-bc7a8230949f]

Also known as: Golden Tuna

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
13.1mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
110m
Dial Color
Champagne
Jewels
25j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1968

Related Models

seikata-wm-bc7a8230949f