Seiko Cal. 6657 - 743

Seiko 6657-743

The 6657-743 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6657 caliber with 35j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-1346d57a65f8]

Also known as: Helmet, Arnie

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
46mm
Case Thickness
10.8mm
Lug Width
19mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Navy
Jewels
35j
Frequency
21,600 bph
Power Reserve
67 hours
Year
1982

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seikata-wm-1346d57a65f8