Seiko Cal. 7144 - 393

The Seiko 7144-393 represents an important milestone in Seiko's 1980 lineup. With its 20mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-32b772469eed]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Champagne

Jewels

27j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1980

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