Seiko Cal. 7121 - 154

The Seiko 7121-154 represents an important milestone in Seiko's 1970 lineup. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-3ca1d80b6a44]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

13.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1970

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