Seiko Cal. 6618 - 578

The Seiko 6618-578 represents an important milestone in Seiko's 1981 lineup. Powered by the 6618 caliber with 19j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-d6bada725f2e]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1981

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