Seiko Cal. 5637 - 407

The Seiko 5637-407 represents an important milestone in Seiko's 1972 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-75cf618e2490]

Also known as: Crown, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

130m

Dial Color

Champagne

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1972

Related Models

• Seiko 0763-593
• Seiko 4543-920
• Seiko 6611-443
• Seiko 6399-122
• Seiko 5671-728
• Seiko 5281-458
• Seiko 7180-957
• Seiko 5692-819
• Seiko 6287-603
• Seiko 4592-125
• Seiko 4425-350
• Seiko 6153-252