Seiko Cal. 6380 - 984

This Hand-Winding model from 1985 features a 40mm Hardlex-Coated Steel case. Powered by the 6380 caliber with 17j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-96fbf7094916]

Also known as: Tuna, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

17j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1985

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