Seiko Cal. 6657 - 576

The 6657-576 is a sought-after Automatic piece from Seiko's golden era. With its 22mm lug width and 8.0mm profile, it sits comfortably on most wrists. [seikata-wm-7daf05cdec78]

Also known as: Helmet, Crown

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

8.0mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1968

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