Seiko Cal. 4478 - 103

The Seiko 4478-103 represents an important milestone in Seiko's 1979 lineup. Powered by the 4478 caliber with 29j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-bee74dd3bd6d]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Champagne

Jewels

29j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1979

Related Models

• Seiko 7153-226
• Seiko 5278-366
• Seiko 6251-408
• Seiko 6381-174
• Seiko 5667-677
• Seiko 5686-424
• Seiko 4552-182
• Seiko 6156-416
• Seiko 6276-667
• Seiko 6623-204
• Seiko 7136-595
• Seiko 6173-349