Seiko Cal. 6657 - 789

Seiko 6657-789

This Automatic model from 1966 features a 37mm Gold-Plated case. The Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-7c2ce84d6e53]

Also known as: Sumo

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
13.2mm
Lug Width
19mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
170m
Dial Color
White
Jewels
23j
Frequency
21,600 bph
Power Reserve
66 hours
Year
1966

Related Models

seikata-wm-7c2ce84d6e53