Seiko Cal. 6657 - 525

The Seiko 6657-525 represents an important milestone in Seiko's 1967 lineup. The Bidirectional bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-7979958b4626]

Also known as: Arnie

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

43mm

Case Thickness

11.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

63 hours

Year

1967

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