Seiko Cal. 5284 - 180

The 5284-180 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 5284 caliber with 36j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-143b74c5c23e]

Also known as: Tuna, Navigator

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

110m

Dial Color

White

Jewels

36j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1968

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