Seiko Cal. 6380 - 648

This Spring Drive model from 1985 features a 37mm Two-Tone case. Powered by the 6380 caliber with 17j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-19e2070d0c60]

Also known as: Silverwave, World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.9mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1985

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