Seiko Cal. 4521 - 227

The Seiko 4521-227 represents an important milestone in Seiko's 1995 lineup. Powered by the 4521 caliber with 31j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-66c56f750a20]

Also known as: Tuna, Arnie

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

43mm

Case Thickness

15.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

31j

Frequency

21,600 bph

Power Reserve

71 hours

Year

1995

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