Seiko Cal. 5285 - 539

The 5285-539 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5285 caliber with 29j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-b3896ce9de2b]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

41mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1968

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