Seiko Cal. 3820 - 725

The 3820-725 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3820 caliber with 27j jewels beating at 36,000 bph, it delivers a 72 hours power reserve. [seikata-wm-1bf686a9438b]

Also known as: Panda, UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

36,000 bph

Power Reserve

72 hours

Year

1984

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