Seiko Cal. 6657 - 661

The Seiko 6657-661 represents an important milestone in Seiko's 1988 lineup. It features a Navy dial protected by a Acrylic crystal and offers 190m of water resistance. [seikata-wm-1b6999fc05e3]

Also known as: Panda, Bellmatic

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1988

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