Seiko Cal. 6657 - 830

Seiko 6657-830

This Spring Drive model from 1965 features a 42mm Gold-Plated case. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d30b2b6f0541]

Also known as: Navigator

Specifications

Movement
Spring Drive
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
13.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
130m
Dial Color
Navy
Jewels
17j
Frequency
21,600 bph
Power Reserve
62 hours
Year
1965

Related Models

seikata-wm-d30b2b6f0541