Seiko Cal. 3840 - 534

The Seiko 3840-534 represents an important milestone in Seiko's 1977 lineup. Powered by the 3840 caliber with 20j jewels beating at 28,800 bph, it delivers a 45 hours power reserve. [seikata-wm-e28b582b0a07]

Also known as: Crown

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

13.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

20j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1977

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