Seiko Cal. 4521 - 227

This Spring Drive model from 1999 features a 40mm Two-Tone case. The Bidirectional bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2db432fbb2a2]

Also known as: Rally, Crown

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1999

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