Seiko Cal. 5637 - 508

This Hand-Winding model from 1999 features a 42mm Hardlex-Coated Steel case. Powered by the 5637 caliber with 27j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-edc5833b6a3a]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1999

Related Models

• Seiko 4537-880
• Seiko 6335-688
• Seiko 6637-380
• Seiko 6617-898
• Seiko 5218-670
• Seiko 7078-980
• Seiko 4418-174
• Seiko 6127-431
• Seiko 0753-809
• Seiko 7197-714
• Seiko 7159-977
• Seiko 5694-759