Seiko Cal. 5665 - 601

The Seiko 5665-601 represents an important milestone in Seiko's 1981 lineup. Powered by the 5665 caliber with 27j jewels beating at 28,800 bph, it delivers a 58 hours power reserve. [seikata-wm-d5adb7eb2cff]

Also known as: Monster

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

37mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

200m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1981

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