Seiko Cal. 3865 - 544

The 3865-544 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3865 caliber with 34j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-cb11a9050c70]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

14.5mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Champagne

Jewels

34j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1971

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