Seiko Cal. 7121 - 431

The Seiko 7121-431 represents an important milestone in Seiko's 1989 lineup. Powered by the 7121 caliber with 33j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-69ab94ed7e35]

Also known as: Helmet, World Timer

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

11.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

33j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1989

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