Seiko Cal. 4421 - 551

This Hand-Winding model from 1990 features a 44mm PVD Black case. It features a White dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-d6d60c27e9b3]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

36j

Frequency

21,600 bph

Power Reserve

67 hours

Year

1990

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