Seiko Cal. 6388 - 788

The Seiko 6388-788 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-acac1897468c]

Also known as: Rally, World Timer

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

17j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1978

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