Seiko Cal. 5237 - 431

The 5237-431 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-d6ebd34275ea]

Also known as: Baby Tuna, Arnie

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

23j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1972

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