Seiko Cal. 5671 - 740

The 5671-740 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5671 caliber with 24j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-8086279a66ab]

Also known as: Sea Horse, Flighty

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Champagne

Jewels

24j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1965

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