Seiko Cal. 5642 - 318

The 5642-318 is a sought-after Spring Drive piece from Seiko's golden era. It features a Green dial protected by a Hardlex crystal and offers 130m of water resistance. [seikata-wm-3ca99a681cfe]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

130m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1973

Related Models

• Seiko 3864-356
• Seiko 4482-770
• Seiko 6221-501
• Seiko 4554-881
• Seiko 7079-784
• Seiko 4533-799
• Seiko 6342-170
• Seiko 6363-941
• Seiko 6640-518
• Seiko 6248-249
• Seiko 4566-135
• Seiko 6372-606