Seiko Cal. 5633 - 577

Seiko 5633-577

The 5633-577 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5633 caliber with 31j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-2744bc07ca18]

Also known as: Navigator, Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
12.0mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Navy
Jewels
31j
Frequency
28,800 bph
Power Reserve
56 hours
Year
1971

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seikata-wm-2744bc07ca18