Seiko Cal. 5657 - 979

Seiko 5657-979

The 5657-979 is a sought-after Spring Drive piece from Seiko's golden era. The Fixed bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-fc62593bb74e]

Also known as: Monster, World Timer

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
12.1mm
Lug Width
22mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
180m
Dial Color
Black
Jewels
27j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1975

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