Seiko Cal. 5671 - 437

Released in 1979, the Cal. 5671 with design code 437 was part of Seiko's domestic market collection. Powered by the 5671 caliber with 24j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-07743fa156f5]

Also known as: UFO

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

70m

Dial Color

Burgundy

Jewels

24j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1979

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