Seiko Cal. 6671 - 690

The 6671-690 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6671 caliber with 26j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-454522e02ff7]

Also known as: Bellmatic, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

14.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1984

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