Seiko Cal. 4438 - 242

The Seiko 4438-242 represents an important milestone in Seiko's 1971 lineup. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-6017d09b0a61]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.9mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

60m

Dial Color

Silver

Jewels

17j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1971

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