Seiko Cal. 3861 - 863

Seiko 3861-863

The Seiko 3861-863 represents an important milestone in Seiko's 1973 lineup. Powered by the 3861 caliber with 32j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-e092d591fcf0]

Also known as: Bellmatic, Arnie

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
42mm
Case Thickness
8.9mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
180m
Dial Color
Navy
Jewels
32j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1973

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