Seiko Cal. 3840 - 155

The Seiko 3840-155 represents an important milestone in Seiko's 1988 lineup. Powered by the 3840 caliber with 27j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-389e3014672c]

Also known as: World Timer, Arnie

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

41mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

White

Jewels

27j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1988

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