Seiko Cal. 5681 - 866

Released in 1996, the Cal. 5681 with design code 866 was part of Seiko's domestic market collection. Powered by the 5681 caliber with 29j jewels beating at 28,800 bph, it delivers a 64 hours power reserve. [seikata-wm-ad87cf068045]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

46mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1996

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