Seiko Cal. 6378 - 187

The Seiko 6378-187 represents an important milestone in Seiko's 1998 lineup. It features a Silver dial protected by a Mineral crystal and offers 30m of water resistance. [seikata-wm-bc4b705e213d]

Also known as: Helmet, Rally

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

20j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1998

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