Seiko Cal. 6231 - 451

The Seiko 6231-451 represents an important milestone in Seiko's 1968 lineup. It features a Navy dial protected by a Sapphire crystal and offers 200m of water resistance. [seikata-wm-b7d6aed0411b]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

18j

Frequency

28,800 bph

Power Reserve

67 hours

Year

1968

Related Models

• Seiko 6144-503
• Seiko 5274-536
• Seiko 3841-859
• Seiko 0726-482
• Seiko 6366-501
• Seiko 3847-933
• Seiko 0758-312
• Seiko 7157-904
• Seiko 3849-204
• Seiko 5680-278
• Seiko 6335-880
• Seiko 5637-637