Seiko Cal. 6658 - 278

The 6658-278 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6658 caliber with 27j jewels beating at 21,600 bph, it delivers a 70 hours power reserve. [seikata-wm-03b566872861]

Also known as: Monster, Shogun

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

10.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1994

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