Seiko Cal. 4451 - 941

This Spring Drive model from 1975 features a 42mm Two-Tone case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-48af271e222f]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

42mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1975

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