Seiko Cal. 4537 - 231

The 4537-231 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Green dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-218a996447f9]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

50m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1974

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