Seiko Cal. 6658 - 494

Seiko 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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