Seiko Cal. 6287 - 163

The 6287-163 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6287 caliber with 34j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-53b1c3f90245]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Black

Jewels

34j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1977

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