Seiko Cal. 5271 - 307

Seiko 5271-307

The Seiko 5271-307 represents an important milestone in Seiko's 1969 lineup. Powered by the 5271 caliber with 28j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-cef66d467253]

Also known as: Sumo, Shogun

Specifications

Movement
Solar
Case Material
Titanium
Case Width
43mm
Case Thickness
13.5mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
40m
Dial Color
Burgundy
Jewels
28j
Frequency
36,000 bph
Power Reserve
66 hours
Year
1969

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