Seiko Cal. 6661 - 177

The Seiko 6661-177 represents an important milestone in Seiko's 1993 lineup. Powered by the 6661 caliber with 35j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-d4429e10d49a]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1993

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