Seiko Cal. 6378 - 527

The Seiko 6378-527 represents an important milestone in Seiko's 1971 lineup. It features a Silver dial protected by a Mineral crystal and offers 50m of water resistance. [seikata-wm-aab7b9e91378]

Also known as: Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

14.0mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Silver

Jewels

34j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1971

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