Seiko Cal. 3818 - 685

The 3818-685 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3818 caliber with 33j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-c332c73c382a]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

38mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Black

Jewels

33j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1972

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