Seiko Cal. 6331 - 999

The 6331-999 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6331 caliber with 34j jewels beating at 36,000 bph, it delivers a 53 hours power reserve. [seikata-wm-87b94f644862]

Also known as: Navigator

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

34j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1982

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