Seiko Cal. 3811 - 725

The 3811-725 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-9e6a86a956ec]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1973

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