Seiko Cal. 5275 - 640

The 5275-640 is a sought-after Solar piece from Seiko's golden era. Powered by the 5275 caliber with 18j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-80603b1082f8]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Champagne

Jewels

18j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1976

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