Seiko Cal. 5645 - 972

Seiko 5645-972

The 5645-972 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5645 caliber with 25j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-6ca6f8ee9219]

Also known as: Tuna, Navigator

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
39mm
Case Thickness
9.9mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
130m
Dial Color
Cream
Jewels
25j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1971

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