Seiko Cal. 7028 - 377

The 7028-377 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7028 caliber with 35j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-5666e1fd9142]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

43mm

Case Thickness

9.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1981

Related Models

• Seiko 6129-876
• Seiko 7017-411
• Seiko 7046-629
• Seiko 7168-736
• Seiko 4529-149
• Seiko 3823-214
• Seiko 7091-276
• Seiko 6278-312
• Seiko 6163-792
• Seiko 7083-477
• Seiko 6276-942
• Seiko 0747-303