Seiko Cal. 6637 - 150

The Seiko 6637-150 represents an important milestone in Seiko's 1981 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-522143711634]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1981

Related Models

• Seiko 3812-758
• Seiko 0744-302
• Seiko 5660-783
• Seiko 7070-671
• Seiko 7182-691
• Seiko 3883-791
• Seiko 6146-728
• Seiko 5687-803
• Seiko 6390-767
• Seiko 6313-440
• Seiko 6273-912
• Seiko 6624-521