Seiko Cal. 6364 - 623

The 6364-623 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6364 caliber with 23j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-6e30f79e3f5b]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1991

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