Seiko Cal. 5671 - 539

Released in 1968, the Cal. 5671 with design code 539 was part of Seiko's domestic market collection. With its 22mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-2fd143704afd]

Also known as: Sumo, Goldfeather

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1968

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