Seiko Cal. 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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