Seiko Cal. 4527 - 271

The 4527-271 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4527 caliber with 23j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-1f22e7f48a75]

Also known as: Tuna, World Timer

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Black

Jewels

23j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1990

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