Seiko Cal. 5638 - 911

The 5638-911 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-66bdf277ad6f]

Also known as: Monster, Crown

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1987

Related Models

• Seiko 3866-927
• Seiko 6298-656
• Seiko 0728-349
• Seiko 4546-737
• Seiko 7011-420
• Seiko 6251-899
• Seiko 6123-762
• Seiko 3866-772
• Seiko 6319-256
• Seiko 3893-518
• Seiko 6318-183
• Seiko 4410-919