Seiko Cal. 4421 - 276

The Seiko 4421-276 represents an important milestone in Seiko's 1974 lineup. It features a Black dial protected by a Acrylic crystal and offers 150m of water resistance. [seikata-wm-538c57b33e06]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

15.7mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

150m

Dial Color

Black

Jewels

29j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1974

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