Seiko Cal. 4439 - 177

The 4439-177 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4439 caliber with 28j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-ab4e60389449]

Also known as: Helmet, Bellmatic

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

36mm

Case Thickness

12.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

White

Jewels

28j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1983

Related Models

• Seiko 7115-943
• Seiko 7024-553
• Seiko 4433-841
• Seiko 0778-887
• Seiko 5685-636
• Seiko 7017-863
• Seiko 6149-105
• Seiko 6648-208
• Seiko 4456-907
• Seiko 6176-226
• Seiko 4533-477
• Seiko 3865-248