Seiko Cal. 5253 - 645

Seiko 5253-645

The 5253-645 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5253 caliber with 28j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-5ce29ba649fe]

Also known as: Sumo, Shogun

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
36mm
Case Thickness
15.3mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Black
Jewels
28j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1988

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seikata-wm-5ce29ba649fe