Seiko Cal. 4538 - 901

The Seiko 4538-901 represents an important milestone in Seiko's 1987 lineup. Powered by the 4538 caliber with 27j jewels beating at 36,000 bph, it delivers a 54 hours power reserve. [seikata-wm-a8d96e6395f0]

Also known as: Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1987

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