Seiko Cal. 3831 - 725

The 3831-725 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3831 caliber with 19j jewels beating at 21,600 bph, it delivers a 60 hours power reserve. [seikata-wm-e220cde65403]

Also known as: Samurai, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

19j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1984

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