Seiko Cal. 6657 - 577

Seiko 6657-577

This Automatic model from 1978 features a 40mm Titanium case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-d2657cb5f7f7]

Also known as: Navigator, Flighty

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
40mm
Case Thickness
14.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
40m
Dial Color
Cream
Jewels
25j
Frequency
36,000 bph
Power Reserve
71 hours
Year
1978

Related Models

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