Seiko Cal. 5656 - 513

The 5656-513 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5656 caliber with 34j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-37960d7e9463]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Champagne

Jewels

34j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1972

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