Seiko Cal. 5681 - 971

The 5681-971 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5681 caliber with 26j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-27f3e3852175]

Also known as: UFO, Bellmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Black

Jewels

26j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1998

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