Seiko Cal. 5231 - 723

The Seiko 5231-723 represents an important milestone in Seiko's 1993 lineup. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-79fc0f11ab72]

Also known as: Monster, Navigator

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

8.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1993

Related Models

• Seiko 6236-384
• Seiko 6375-117
• Seiko 4499-878
• Seiko 3833-254
• Seiko 5644-715
• Seiko 6269-911
• Seiko 4513-533
• Seiko 5256-199
• Seiko 6139-870
• Seiko 0737-911
• Seiko 6686-898
• Seiko 5665-422