Seiko Cal. 6399 - 947

Released in 1974, the Cal. 6399 with design code 947 was part of Seiko's domestic market collection. Powered by the 6399 caliber with 24j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-bb4d51bcb8ad]

Also known as: UFO, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

43mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Silver

Jewels

24j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1974

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