Seiko Cal. 5263 - 527

Released in 1980, the Cal. 5263 with design code 527 was part of Seiko's domestic market collection. Powered by the 5263 caliber with 28j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-eb9bd7c2b40a]

Also known as: Sumo, Bullhead

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Champagne

Jewels

28j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1980

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