Seiko Cal. 7121 - 427

This Spring Drive model from 1972 features a 42mm PVD Black case. It features a Navy dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-bc29e76216aa]

Also known as: Rally, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

23j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1972

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