Seiko Cal. 0720 - 989

This Spring Drive model from 1978 features a 44mm Two-Tone case. Powered by the 0720 caliber with 22j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-ba34647efaa3]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

70m

Dial Color

Black

Jewels

22j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1978

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