Seiko Cal. 5641 - 236

This Quartz model from 1973 features a 42mm PVD Black case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 110m of water resistance. [seikata-wm-cb1b8ab3b466]

Also known as: Turtle, Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1973

Related Models

• Seiko 6324-167
• Seiko 6614-857
• Seiko 6619-581
• Seiko 7043-100
• Seiko 4498-415
• Seiko 4436-402
• Seiko 0731-675
• Seiko 7164-429
• Seiko 7033-596
• Seiko 4534-983
• Seiko 7146-735
• Seiko 7088-188