Seiko Cal. 5251 - 658

The 5251-658 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5251 caliber with 27j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-dc5c8c07bf58]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

13.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1971

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