Seiko Cal. 6178 - 384

This Hand-Winding model from 1978 features a 35mm Titanium case. Powered by the 6178 caliber with 28j jewels beating at 28,800 bph, it delivers a 55 hours power reserve. [seikata-wm-44db4aef62f7]

Also known as: Helmet, Rally

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1978

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