Seiko Cal. 6637 - 594

This Hand-Winding model from 1979 features a 35mm Two-Tone case. Powered by the 6637 caliber with 29j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-4dcf777dfe66]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

35mm

Case Thickness

11.4mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

30m

Dial Color

Cream

Jewels

29j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1979

Related Models

• Seiko 6213-800
• Seiko 7138-543
• Seiko 0799-270
• Seiko 5248-456
• Seiko 5647-390
• Seiko 7154-138
• Seiko 7055-130
• Seiko 5673-887
• Seiko 7093-364
• Seiko 6146-125
• Seiko 4411-873
• Seiko 4472-535