Seiko Cal. 6331 - 684

The 6331-684 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6331 caliber with 18j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-8de0d571f414]

Also known as: Panda

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1984

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