Seiko Cal. 7131 - 238

The 7131-238 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7131 caliber with 18j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-8276e7e8608f]

Also known as: Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1994

Related Models

• Seiko 7185-421
• Seiko 7171-101
• Seiko 6393-293
• Seiko 6164-349
• Seiko 3824-551
• Seiko 7051-513
• Seiko 3871-879
• Seiko 7081-989
• Seiko 0787-148
• Seiko 7145-727
• Seiko 7129-116
• Seiko 6241-561