Seiko Cal. 3817 - 731

Released in 1997, the Cal. 3817 with design code 731 was part of Seiko's domestic market collection. With its 21mm lug width and 13.1mm profile, it sits comfortably on most wrists. [seikata-wm-2bc94bb18aeb]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

13.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1997

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