Seiko Cal. 4438 - 166

The Seiko 4438-166 represents an important milestone in Seiko's 1978 lineup. The Fixed bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-82552a4f9906]

Also known as: Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.1mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

40m

Dial Color

Champagne

Jewels

17j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1978

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