Seiko Cal. 7121 - 683

The Seiko 7121-683 represents an important milestone in Seiko's 1971 lineup. Powered by the 7121 caliber with 25j jewels beating at 21,600 bph, it delivers a 67 hours power reserve. [seikata-wm-f4d2bb6eb38d]

Also known as: Monster, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1971

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