Seiko Cal. 6688 - 312

The Seiko 6688-312 represents an important milestone in Seiko's 1970 lineup. It features a Silver dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-4718fe0bcce9]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

32j

Frequency

28,800 bph

Power Reserve

58 hours

Year

1970

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