Seiko Cal. 6618 - 156

The Seiko 6618-156 represents an important milestone in Seiko's 1987 lineup. Powered by the 6618 caliber with 22j jewels beating at 21,600 bph, it delivers a 37 hours power reserve. [seikata-wm-ea04ab76d37e]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

9.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1987

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