Seiko Cal. 6373 - 440

The Seiko 6373-440 represents an important milestone in Seiko's 1967 lineup. The Bidirectional bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-2cadac20954d]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

44mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1967

Related Models

• Seiko 7045-486
• Seiko 5213-451
• Seiko 3846-243
• Seiko 4521-577
• Seiko 4460-549
• Seiko 6250-558
• Seiko 6189-187
• Seiko 6327-692
• Seiko 4524-526
• Seiko 5273-758
• Seiko 6281-137
• Seiko 5210-523