Seiko Cal. 3837 - 443

The Seiko 3837-443 represents an important milestone in Seiko's 1976 lineup. Powered by the 3837 caliber with 20j jewels beating at 28,800 bph, it delivers a 67 hours power reserve. [seikata-wm-c185932d48b1]

Also known as: Bellmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1976

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