Seiko Cal. 5657 - 760

The 5657-760 is a sought-after Spring Drive piece from Seiko's golden era. With its 22mm lug width and 8.8mm profile, it sits comfortably on most wrists. [seikata-wm-77bb976aeab0]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

35mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1967

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