Seiko Cal. 6627 - 654

The 6627-654 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6627 caliber with 31j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-0a8ad18fb566]

Also known as: Golden Tuna, Emperor

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

50m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1991

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