Seiko Cal. 5231 - 735

The 5231-735 is a sought-after Solar piece from Seiko's golden era. The Bidirectional bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-df13543ce040]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Green

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1967

Related Models

• Seiko 4492-137
• Seiko 6326-794
• Seiko 5686-672
• Seiko 7116-407
• Seiko 6628-573
• Seiko 6293-197
• Seiko 7021-725
• Seiko 5228-881
• Seiko 3853-137
• Seiko 6134-986
• Seiko 6663-911
• Seiko 5233-323