Seiko Cal. 6657 - 891

Seiko 6657-891

The 6657-891 is a sought-after Quartz piece from Seiko's golden era. The Bidirectional bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-9bafa8272a79]

Also known as: Monster, Bellmatic

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
35mm
Case Thickness
11.0mm
Lug Width
20mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
200m
Dial Color
Silver
Jewels
28j
Frequency
21,600 bph
Power Reserve
60 hours
Year
1996

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seikata-wm-9bafa8272a79