Seiko Cal. 4421 - 322

This Automatic model from 1976 features a 43mm Hardlex-Coated Steel case. It features a Navy dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-845eba4adf5a]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Navy

Jewels

21j

Frequency

36,000 bph

Power Reserve

71 hours

Year

1976

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