Seiko Cal. 4591 - 452

Released in 1975, the Cal. 4591 with design code 452 was part of Seiko's domestic market collection. It features a Black dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-37e3662bc06f]

Also known as: Silverwave, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

30j

Frequency

28,800 bph

Power Reserve

50 hours

Year

1975

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