Seiko Cal. 4537 - 227

The Seiko 4537-227 represents an important milestone in Seiko's 1997 lineup. Powered by the 4537 caliber with 19j jewels beating at 21,600 bph, it delivers a 45 hours power reserve. [seikata-wm-767f9afe69dd]

Also known as: Bullhead

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

8.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Navy

Jewels

19j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1997

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