Seiko Cal. 6658 - 680

The 6658-680 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6658 caliber with 27j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-45963d9b5491]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1983

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