Seiko Cal. 5661 - 320

The 5661-320 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 15.0mm profile, it sits comfortably on most wrists. [seikata-wm-e87d0752441d]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

42mm

Case Thickness

15.0mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Black

Jewels

29j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1976

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