Seiko Cal. 7121 - 913

The Seiko 7121-913 represents an important milestone in Seiko's 1989 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-0ae28a9c1329]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1989

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