Seiko Cal. 3813 - 425

The 3813-425 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-01b434c59acc]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1997

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