Seiko Cal. 6618 - 348

The 6618-348 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6618 caliber with 19j jewels beating at 21,600 bph, it delivers a 55 hours power reserve. [seikata-wm-5bdd9b92ca72]

Also known as: Sumo, Bullhead

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

19j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1969

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