Seiko Cal. 6121 - 935

The 6121-935 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6121 caliber with 20j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-0a9cb94b76fa]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1974

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