Seiko Cal. 7031 - 121

The Seiko 7031-121 represents an important milestone in Seiko's 1975 lineup. Powered by the 7031 caliber with 26j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-72cc30938225]

Also known as: Bellmatic, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1975

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