Seiko Cal. 3884 - 725

The 3884-725 is a sought-after Automatic piece from Seiko's golden era. Powered by the 3884 caliber with 18j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-1fa1fabedd8a]

Also known as: Tuna, World Timer

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

12.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1989

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