Seiko Cal. 4438 - 228

The Seiko 4438-228 represents an important milestone in Seiko's 1983 lineup. It features a Green dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-c1682430b7c2]

Also known as: Shogun, Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1983

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