Seiko Cal. 4438 - 312

The Seiko 4438-312 represents an important milestone in Seiko's 1993 lineup. With its 21mm lug width and 10.0mm profile, it sits comfortably on most wrists. [seikata-wm-03a42ac010f4]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1993

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