Seiko Cal. 4421 - 800

Released in 1965, the Cal. 4421 with design code 800 was part of Seiko's domestic market collection. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-92b05ded17bc]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

44mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Silver

Jewels

29j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1965

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