Seiko Cal. 3837 - 563

The Seiko 3837-563 represents an important milestone in Seiko's 1968 lineup. Powered by the 3837 caliber with 31j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-cf6adc0c75d2]

Also known as: UFO, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Burgundy

Jewels

31j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1968

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