Seiko Cal. 3816 - 426

The 3816-426 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3816 caliber with 35j jewels beating at 36,000 bph, it delivers a 52 hours power reserve. [seikata-wm-33f8a7380768]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

44mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1980

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