Seiko Cal. 5665 - 785

This Spring Drive model from 1979 features a 42mm PVD Black case. Powered by the 5665 caliber with 30j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-274e26a3be74]

Also known as: Monster, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

42mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1979

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