Seiko Cal. 6231 - 135

This Spring Drive model from 1981 features a 42mm Gold-Plated case. Powered by the 6231 caliber with 31j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-674e15d03595]

Also known as: Navigator, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

11.4mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1981

Related Models

• Seiko 4444-587
• Seiko 5270-693
• Seiko 5612-838
• Seiko 4547-663
• Seiko 7094-125
• Seiko 3892-514
• Seiko 4412-732
• Seiko 6175-959
• Seiko 6238-903
• Seiko 0751-381
• Seiko 0798-554
• Seiko 0790-953