Seiko Cal. 7072 - 331

The Seiko 7072-331 represents an important milestone in Seiko's 1977 lineup. Powered by the 7072 caliber with 17j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-d5d12cbf6fa8]

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

11.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1977

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