Seiko Cal. 0770 - 391

Seiko 0770-391

This Spring Drive model from 1992 features a 41mm Hardlex-Coated Steel case. The Bidirectional bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-73b2cbf129c7]

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
10.0mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
170m
Dial Color
White
Jewels
31j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1992

Related Models

seikata-wm-73b2cbf129c7