Seiko Cal. 3865 - 729

The 3865-729 is a sought-after Quartz piece from Seiko's golden era. Powered by the 3865 caliber with 27j jewels beating at 36,000 bph, it delivers a 62 hours power reserve. [seikata-wm-11c5d0ce42b1]

Also known as: Bellmatic, Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

45mm

Case Thickness

14.7mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1972

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