Seiko Cal. 5641 - 435

The 5641-435 is a sought-after Quartz piece from Seiko's golden era. It features a Burgundy dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-f9954783e6fc]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

40mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

50 hours

Year

1981

Related Models

• Seiko 7060-258
• Seiko 4546-590
• Seiko 4495-117
• Seiko 4463-807
• Seiko 5634-906
• Seiko 7153-308
• Seiko 6626-463
• Seiko 3820-268
• Seiko 6365-943
• Seiko 4594-716
• Seiko 6374-167
• Seiko 7081-137