Seiko Cal. 6121 - 856

The 6121-856 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6121 caliber with 18j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-7cfe962eb94e]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1977

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