Seiko Cal. 6312 - 663

The Seiko 6312-663 represents an important milestone in Seiko's 1987 lineup. Powered by the 6312 caliber with 27j jewels beating at 21,600 bph, it delivers a 63 hours power reserve. [seikata-wm-11e10dc2affc]

Also known as: Sumo, Panda

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

46mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Silver

Jewels

27j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1987

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