Seiko Cal. 5230 - 231

The Seiko 5230-231 represents an important milestone in Seiko's 1969 lineup. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-6285322393f6]

Also known as: Turtle, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

15.2mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

Related Models

• Seiko 5657-319
• Seiko 7129-595
• Seiko 5676-182
• Seiko 6311-669
• Seiko 0712-539
• Seiko 5645-872
• Seiko 4417-730
• Seiko 6278-440
• Seiko 4577-899
• Seiko 0768-396
• Seiko 7047-789
• Seiko 7039-926