Seiko Cal. 6331 - 491

The 6331-491 is a sought-after Solar piece from Seiko's golden era. Powered by the 6331 caliber with 20j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-5a1cf2130444]

Also known as: Goldfeather

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1970

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