Seiko Cal. 4481 - 277

The 4481-277 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4481 caliber with 31j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-22f6527f2790]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

14.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Black

Jewels

31j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1967

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