Seiko Cal. 3816 - 847

Released in 1977, the Cal. 3816 with design code 847 was part of Seiko's domestic market collection. With its 21mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-a8f574dcd3ae]

Also known as: Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

43mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1977

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