Seiko Cal. 5681 - 280

The 5681-280 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5681 caliber with 24j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-b4386d2594d0]

Also known as: Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

24j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1965

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