Seiko Cal. 5661 - 181

The Seiko 5661-181 represents an important milestone in Seiko's 1992 lineup. Powered by the 5661 caliber with 24j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-089d605c8f0e]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1992

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