Seiko Cal. 5610 - 776

The 5610-776 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5610 caliber with 26j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-72983da7efcb]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

170m

Dial Color

Black

Jewels

26j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1978

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