Seiko Cal. 6661 - 350

The Seiko 6661-350 represents an important milestone in Seiko's 1970 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 40m of water resistance. [seikata-wm-cbfc1bf3b6ed]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

40m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1970

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