Seiko Cal. 0740 - 671

The Seiko 0740-671 represents an important milestone in Seiko's 1979 lineup. Powered by the 0740 caliber with 26j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-0245a752a98d]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

39mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1979

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