Seiko Cal. 3840 - 780

The Seiko 3840-780 represents an important milestone in Seiko's 1973 lineup. Powered by the 3840 caliber with 31j jewels beating at 28,800 bph, it delivers a 50 hours power reserve. [seikata-wm-4d79c204019e]

Also known as: Samurai

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

31j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1973

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