Seiko Cal. 6657 - 727

Seiko 6657-727

This Automatic model from 1992 features a 37mm Gold-Plated case. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-1da26c1261bf]

Also known as: Bellmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
9.0mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Green
Jewels
32j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1992

Related Models

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