Seiko Cal. 6658 - 494

The Seiko 6658-494 represents an important milestone in Seiko's 1982 lineup. Powered by the 6658 caliber with 25j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-12df67287e94]

Also known as: Monster, UFO

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

150m

Dial Color

Silver

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1982

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