Seiko Cal. 0721 - 624

This Automatic model from 1991 features a 46mm Hardlex-Coated Steel case. Powered by the 0721 caliber with 27j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-2ad23a2f5317]

Also known as: Sumo, Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

80m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1991

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