Seiko Cal. 5277 - 260

The Seiko 5277-260 represents an important milestone in Seiko's 1966 lineup. Powered by the 5277 caliber with 34j jewels beating at 21,600 bph, it delivers a 44 hours power reserve. [seikata-wm-fe8a496d33b4]

Also known as: Tuna, Bullhead

Specifications

Movement

Quartz

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1966

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