Seiko Cal. 3815 - 976

Released in 1975, the Cal. 3815 with design code 976 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-6bb8ab97c36f]

Also known as: Sportsmatic, Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

12.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

70m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1975

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