Seiko Cal. 6310 - 247

The Seiko 6310-247 represents an important milestone in Seiko's 1966 lineup. Powered by the 6310 caliber with 31j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-a588eba6f9f5]

Also known as: Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Cream

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1966

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