Seiko Cal. 5237 - 640

The Seiko 5237-640 represents an important milestone in Seiko's 1984 lineup. Powered by the 5237 caliber with 25j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-8f7cb279439a]

Also known as: Panda, Crown

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

25j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1984

Related Models

• Seiko 4590-355
• Seiko 4598-318
• Seiko 6322-648
• Seiko 3877-822
• Seiko 3889-582
• Seiko 4441-744
• Seiko 4525-447
• Seiko 4557-112
• Seiko 3839-798
• Seiko 3814-793
• Seiko 6635-432
• Seiko 6673-544