Seiko Cal. 7121 - 804

This Spring Drive model from 1965 features a 39mm PVD Black case. Powered by the 7121 caliber with 30j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-8b3b388c68d0]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1965

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