Seiko Cal. 4438 - 512

The Seiko 4438-512 represents an important milestone in Seiko's 1989 lineup. With its 21mm lug width and 10.1mm profile, it sits comfortably on most wrists. [seikata-wm-bd1e28e6926e]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.1mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

33j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1989

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