Seiko Cal. 4537 - 751

The 4537-751 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-597b3cc823df]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

11.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1980

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