Seiko Cal. 5678 - 864

This Spring Drive model from 1998 features a 42mm Titanium case. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c4b705df7fc3]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

42mm

Case Thickness

14.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1998

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