Seiko Cal. 4438 - 420

The Seiko 4438-420 represents an important milestone in Seiko's 1968 lineup. It features a Green dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-0fe96914f696]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

11.9mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1968

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