Seiko Cal. 4538 - 316

The 4538-316 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4538 caliber with 17j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-37d81512f159]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

11.9mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1985

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