Seiko Cal. 4490 - 275

This Spring Drive model from 1968 features a 37mm Two-Tone case. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-69e61b03d1c0]

Also known as: Shogun

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Champagne

Jewels

19j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1968

Related Models

• Seiko 3824-388
• Seiko 5277-963
• Seiko 4591-302
• Seiko 3890-690
• Seiko 6255-547
• Seiko 6352-170
• Seiko 6630-556
• Seiko 5646-931
• Seiko 6614-868
• Seiko 6148-550
• Seiko 7147-485
• Seiko 6164-237