Seiko Cal. 4428 - 276

This Hand-Winding model from 1974 features a 39mm PVD Black case. Powered by the 4428 caliber with 26j jewels beating at 36,000 bph, it delivers a 46 hours power reserve. [seikata-wm-e5793947c788]

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1974

Related Models

• Seiko 3827-107
• Seiko 4591-467
• Seiko 0718-573
• Seiko 6634-112
• Seiko 6223-761
• Seiko 6311-185
• Seiko 4582-532
• Seiko 6142-255
• Seiko 6231-172
• Seiko 5639-710
• Seiko 6313-571
• Seiko 0730-815