Seiko Cal. 7151 - 503

The Seiko 7151-503 represents an important milestone in Seiko's 1990 lineup. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-3d9c63b54e47]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1990

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