Seiko Cal. 5277 - 521

The Seiko 5277-521 represents an important milestone in Seiko's 1971 lineup. Powered by the 5277 caliber with 29j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-f11cb690a4c9]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1971

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