Seiko Cal. 4478 - 388

The Seiko 4478-388 represents an important milestone in Seiko's 1969 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-3dbc468dc687]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

25j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1969

Related Models

• Seiko 7096-353
• Seiko 4453-505
• Seiko 3839-791
• Seiko 6243-910
• Seiko 6145-182
• Seiko 6364-720
• Seiko 6232-769
• Seiko 4599-395
• Seiko 6387-884
• Seiko 6216-481
• Seiko 3823-572
• Seiko 6252-687