Seiko Cal. 5618 - 690

The Seiko 5618-690 represents an important milestone in Seiko's 1991 lineup. Powered by the 5618 caliber with 20j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-63f97ea49836]

Also known as: Bullhead, Silverwave

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1991

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