Seiko Cal. 5637 - 781

The 5637-781 is a sought-after Spring Drive piece from Seiko's golden era. It features a Black dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-437014ad8a0e]

Also known as: Shogun, Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Black

Jewels

25j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1970

Related Models

• Seiko 0773-549
• Seiko 7056-478
• Seiko 6268-969
• Seiko 3891-267
• Seiko 6644-412
• Seiko 7179-375
• Seiko 7029-940
• Seiko 0798-142
• Seiko 3889-518
• Seiko 6298-105
• Seiko 5664-159
• Seiko 6251-816