Seiko Cal. 5657 - 393

The Seiko 5657-393 represents an important milestone in Seiko's 1973 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-e87cb9403b82]

Also known as: Navigator

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Champagne

Jewels

24j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1973

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