Seiko Cal. 4459 - 638

The 4459-638 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4459 caliber with 21j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-ff536c94996d]

Also known as: Baby Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

43mm

Case Thickness

9.8mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

White

Jewels

21j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1981

Related Models

• Seiko 7162-421
• Seiko 6178-932
• Seiko 4599-593
• Seiko 6379-792
• Seiko 6376-154
• Seiko 5628-583
• Seiko 4573-557
• Seiko 7022-220
• Seiko 6222-786
• Seiko 6693-833
• Seiko 4492-251
• Seiko 6277-928