Seiko Cal. 6657 - 621

This Solar model from 1989 features a 38mm Hardlex-Coated Steel case. With its 21mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-169b6942485c]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1989

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