Seiko Cal. 4527 - 100

The 4527-100 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4527 caliber with 21j jewels beating at 28,800 bph, it delivers a 38 hours power reserve. [seikata-wm-9167a24d02e5]

Also known as: Turtle, Tuna

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Green

Jewels

21j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1968

Related Models

• Seiko 6398-787
• Seiko 5640-545
• Seiko 5289-397
• Seiko 4422-618
• Seiko 5256-637
• Seiko 6381-873
• Seiko 0750-525
• Seiko 7044-859
• Seiko 7059-401
• Seiko 4567-797
• Seiko 7146-777
• Seiko 6124-115