Seiko Cal. 6632 - 654

The Seiko 6632-654 represents an important milestone in Seiko's 1980 lineup. Powered by the 6632 caliber with 27j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-06e8b12220ee]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1980

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