Seiko Cal. 0771 - 836

The 0771-836 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 0771 caliber with 30j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-654bda0a8676]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1992

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