Seiko Cal. 6661 - 603

The Seiko 6661-603 represents an important milestone in Seiko's 1988 lineup. It features a Black dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-699a8e7d8bb9]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

70m

Dial Color

Black

Jewels

19j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1988

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