Seiko Cal. 5661 - 764

The 5661-764 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 8.3mm profile, it sits comfortably on most wrists. [seikata-wm-bf15ea1599d1]

Also known as: Rally, Golden Tuna

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Black

Jewels

31j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1975

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