Seiko Cal. 6661 - 100

The Seiko 6661-100 represents an important milestone in Seiko's 1987 lineup. It features a Black dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-b6be39cf0cc2]

Also known as: Sportsmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

43mm

Case Thickness

12.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1987

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