Seiko Cal. 3865 - 509

The Seiko 3865-509 represents an important milestone in Seiko's 1973 lineup. Powered by the 3865 caliber with 34j jewels beating at 21,600 bph, it delivers a 59 hours power reserve. [seikata-wm-84702e1957ba]

Also known as: Bellmatic, Flighty

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

15.1mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1973

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