Seiko Cal. 3827 - 510

The 3827-510 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3827 caliber with 20j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-4db41d36b33b]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

20j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1966

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