Seiko Cal. 6637 - 248

The 6637-248 is a sought-after Spring Drive piece from Seiko's golden era. It features a Navy dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-3f20497497b4]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Navy

Jewels

32j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1981

Related Models

• Seiko 6269-309
• Seiko 3825-188
• Seiko 4529-609
• Seiko 7175-307
• Seiko 7080-990
• Seiko 7174-682
• Seiko 6661-754
• Seiko 4440-121
• Seiko 7073-733
• Seiko 4454-770
• Seiko 3821-385
• Seiko 3831-354