Seiko Cal. 4537 - 621

This Spring Drive model from 1996 features a 37mm Titanium case. Powered by the 4537 caliber with 29j jewels beating at 21,600 bph, it delivers a 69 hours power reserve. [seikata-wm-863ccdbc7a60]

Also known as: UFO, Silverwave

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

37mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1996

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