Seiko Cal. 7131 - 366

The 7131-366 is a sought-after Solar piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-981476008e5e]

Also known as: Tuna, Rally

Specifications

Movement

Solar

Case Material

Titanium

Case Width

42mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

140m

Dial Color

Cream

Jewels

31j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1973

Related Models

• Seiko 5637-610
• Seiko 6620-627
• Seiko 4595-477
• Seiko 7170-691
• Seiko 6197-745
• Seiko 4570-134
• Seiko 7029-571
• Seiko 6661-799
• Seiko 6172-701
• Seiko 7162-631
• Seiko 3812-956
• Seiko 6239-687