Seiko Cal. 5263 - 287

Released in 1971, the Cal. 5263 with design code 287 was part of Seiko's domestic market collection. Powered by the 5263 caliber with 25j jewels beating at 36,000 bph, it delivers a 42 hours power reserve. [seikata-wm-7a7a1260329e]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.2mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Navy

Jewels

25j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1971

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