Seiko Cal. 5664 - 993

The 5664-993 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5664 caliber with 30j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-2000f912188b]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Navy

Jewels

30j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1972

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