Seiko Cal. 4538 - 998

Released in 1974, the Cal. 4538 with design code 998 was part of Seiko's domestic market collection. Powered by the 4538 caliber with 28j jewels beating at 28,800 bph, it delivers a 49 hours power reserve. [seikata-wm-a4fb06fd94dc]

Also known as: Monster

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

46mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1974

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