Seiko Cal. 6691 - 638

Seiko 6691-638

This Spring Drive model from 1995 features a 39mm Titanium case. Powered by the 6691 caliber with 33j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-34130b814723]

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
39mm
Case Thickness
10.2mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Burgundy
Jewels
33j
Frequency
28,800 bph
Power Reserve
62 hours
Year
1995

Related Models

seikata-wm-34130b814723