Seiko Cal. 6398 - 692

The 6398-692 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6398 caliber with 27j jewels beating at 28,800 bph, it delivers a 68 hours power reserve. [seikata-wm-0e0d14072418]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1966

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