Seiko Cal. 6690 - 356

The Seiko 6690-356 represents an important milestone in Seiko's 1997 lineup. It features a Black dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-574b8be88ffc]

Also known as: Turtle, Rally

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Black

Jewels

18j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1997

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