Seiko Cal. 3873 - 660

Seiko 3873-660

The Seiko 3873-660 represents an important milestone in Seiko's 1970 lineup. Powered by the 3873 caliber with 25j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-cee1ca4b4870]

Also known as: UFO, Emperor

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
43mm
Case Thickness
12.4mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Black
Jewels
25j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1970

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