Seiko Cal. 6310 - 632

The 6310-632 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6310 caliber with 28j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-42b4b9bdf7e8]

Also known as: Sumo, Emperor

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

14.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Black

Jewels

28j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1978

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