Seiko Cal. 4438 - 891

The Seiko 4438-891 represents an important milestone in Seiko's 1974 lineup. It features a Green dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-6422da16009c]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

14.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1974

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