Seiko Cal. 5660 - 554

The 5660-554 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-3f174dd96672]

Also known as: Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

38mm

Case Thickness

14.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1979

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