Seiko Cal. 4421 - 690

The Seiko 4421-690 represents an important milestone in Seiko's 1990 lineup. It features a White dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-df69daca9039]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

37mm

Case Thickness

11.3mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

20j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1990

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