Seiko Cal. 6691 - 885

Seiko 6691-885

This Quartz model from 1965 features a 37mm Titanium case. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-51c45dd0a132]

Also known as: Helmet

Specifications

Movement
Quartz
Case Material
Titanium
Case Width
37mm
Case Thickness
12.8mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Blue Sunburst
Jewels
24j
Frequency
21,600 bph
Power Reserve
69 hours
Year
1965

Related Models

seikata-wm-51c45dd0a132