Seiko Cal. 6398 - 305

The 6398-305 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6398 caliber with 24j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-de1277445bfe]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

24j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1968

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