Seiko Cal. 4531 - 345

The 4531-345 is a sought-after Solar piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-6ac2108c890e]

Also known as: Tuna, Bellmatic

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

15.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1967

Related Models

• Seiko 3839-971
• Seiko 7028-325
• Seiko 5686-561
• Seiko 6247-351
• Seiko 3843-621
• Seiko 4599-578
• Seiko 4573-775
• Seiko 0758-976
• Seiko 7152-376
• Seiko 7029-943
• Seiko 6653-191
• Seiko 6622-332