Seiko Cal. 5221 - 310

The 5221-310 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5221 caliber with 26j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-6956e6ad3a84]

Also known as: Turtle, UFO

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.8mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Green

Jewels

26j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1992

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