Seiko Cal. 7138 - 618

The Seiko 7138-618 represents an important milestone in Seiko's 1989 lineup. Powered by the 7138 caliber with 26j jewels beating at 21,600 bph, it delivers a 39 hours power reserve. [seikata-wm-867949deaebd]

Also known as: Silverwave, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

11.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

39 hours

Year

1989

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