Seiko Cal. 3820 - 707

The 3820-707 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3820 caliber with 35j jewels beating at 36,000 bph, it delivers a 43 hours power reserve. [seikata-wm-3d3e1cd651f7]

Also known as: World Timer, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.4mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Silver

Jewels

35j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1991

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