Seiko Cal. 4577 - 937

Seiko 4577-937

The 4577-937 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4577 caliber with 34j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-283347887d06]

Also known as: Navigator

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
38mm
Case Thickness
10.5mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Silver
Jewels
34j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1977

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seikata-wm-283347887d06