Seiko Cal. 7181 - 113

The Seiko 7181-113 represents an important milestone in Seiko's 1967 lineup. Powered by the 7181 caliber with 36j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-f73b9897b871]

Also known as: Monster, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1967

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