Seiko Cal. 3813 - 825

The Seiko 3813-825 represents an important milestone in Seiko's 1982 lineup. The Bidirectional bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-73118c04af6e]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

10.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1982

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