Seiko Cal. 6661 - 436

The Seiko 6661-436 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-cb9dea80edf8]

Also known as: Shogun, Silverwave

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

39mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

32j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1973

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