Seiko Cal. 6618 - 316

The 6618-316 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6618 caliber with 28j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-0b61ddba2def]

Also known as: Monster, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

28j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1979

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