Seiko Cal. 6637 - 734

Seiko 6637-734

The 6637-734 is a sought-after Quartz piece from Seiko's golden era. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-ca4453b07f75]

Also known as: Monster, Sea Horse

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
9.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Burgundy
Jewels
22j
Frequency
36,000 bph
Power Reserve
56 hours
Year
1975

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