Seiko Cal. 5661 - 956

Seiko 5661-956

The 5661-956 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5661 caliber with 20j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-4a8c0640c5be]

Also known as: UFO

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
38mm
Case Thickness
13.3mm
Lug Width
21mm
Crystal
Hardlex
Bezel
Fixed
Water Resistance
140m
Dial Color
Green
Jewels
20j
Frequency
36,000 bph
Power Reserve
41 hours
Year
1965

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