Seiko Cal. 6657 - 942

Seiko 6657-942

The 6657-942 is a sought-after Automatic piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 160m of water resistance. [seikata-wm-6e60632fd16a]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
14.2mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
160m
Dial Color
Green
Jewels
18j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1969

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