Seiko Cal. 6657 - 803

The Seiko 6657-803 represents an important milestone in Seiko's 1978 lineup. It features a Navy dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-d674fb99a812]

Also known as: Rally

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Navy

Jewels

17j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1978

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