Seiko Cal. 3837 - 563

Seiko 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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