Seiko Cal. 6637 - 838

The Seiko 6637-838 represents an important milestone in Seiko's 1990 lineup. It features a Burgundy dial protected by a Mineral crystal and offers 70m of water resistance. [seikata-wm-e57557af8df7]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

44mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1990

Related Models

• Seiko 5619-504
• Seiko 3866-258
• Seiko 4457-705
• Seiko 0788-107
• Seiko 6269-325
• Seiko 7031-559
• Seiko 7046-854
• Seiko 3864-645
• Seiko 5256-156
• Seiko 5631-453
• Seiko 6639-531
• Seiko 6375-321