Seiko Cal. 4575 - 850

The 4575-850 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4575 caliber with 34j jewels beating at 21,600 bph, it delivers a 51 hours power reserve. [seikata-wm-6922de30dc6d]

Also known as: Tuna, UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

34j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1966

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