Seiko Cal. 3827 - 956

Seiko 3827-956

Released in 1978, the Cal. 3827 with design code 956 was part of Seiko's domestic market collection. Powered by the 3827 caliber with 31j jewels beating at 36,000 bph, it delivers a 44 hours power reserve. [seikata-wm-f27b5472aaf4]

Also known as: Tuna, UFO

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
13.6mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
100m
Dial Color
Blue Sunburst
Jewels
31j
Frequency
36,000 bph
Power Reserve
44 hours
Year
1978

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