Seiko Cal. 6671 - 813

The 6671-813 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6671 caliber with 29j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-b9cb1ba31bf6]

Also known as: World Timer

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

14.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1969

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