Seiko Cal. 5661 - 683

This Spring Drive model from 1982 features a 35mm Gold-Plated case. Powered by the 5661 caliber with 30j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-ba8ffee38665]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Champagne

Jewels

30j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1982

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