Seiko Cal. 7181 - 157

Released in 1966, the Cal. 7181 with design code 157 was part of Seiko's domestic market collection. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-ed333ea93436]

Also known as: Arnie

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1966

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