Seiko Cal. 6661 - 553

The Seiko 6661-553 represents an important milestone in Seiko's 1979 lineup. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-e3ce5929dd31]

Also known as: Panda, Bellmatic

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1979

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